package thread;
/**
 * 互斥性:
 * 当使用多个synchronized锁定多个不同的代码片段，并且指定的同步监视器对象相同时，
 * 这些代码片段之间就是互斥的，多个线程不能同时操作它们
 */
public class SyncDemo5 {
    public static void main(String[] args) {
        Coo coo = new Coo();
        Thread t1 = new Thread(coo::methodA);
        Thread t2 = new Thread(coo::methodB);
        t1.start();
        t2.start();
    }
}

class Coo{
    public synchronized void methodA(){
        try {
            Thread t = Thread.currentThread();
            System.out.println(t.getName()+":正在执行A方法...");
            Thread.sleep(3000);
            System.out.println(t.getName()+":A方法执行完毕...");
        } catch (InterruptedException e) {
        }
    }

    public synchronized void methodB(){
        //synchronized (this) {
            try {
                Thread t = Thread.currentThread();
                System.out.println(t.getName() + ":正在执行B方法...");
                Thread.sleep(3000);
                System.out.println(t.getName() + ":B方法执行完毕...");
            } catch (InterruptedException e) {
            }
        //}
    }
}















